package com.flst.sql;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.SQLException;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
import android.database.sqlite.SQLiteOpenHelper;

public class MaBaseSQLite extends SQLiteOpenHelper {

	private static final String DB_PATH = "/data/data/com.flst/databases/";

	
		private static MaBaseSQLite instance = null;
	
	private static final String DB_NAME = "FLST_DB";

	private SQLiteDatabase maDatabase;
	private final Context myContext;

	public MaBaseSQLite(Context context) {
		
		super(context, DB_NAME, null, 3);
		this.myContext = context;
	}

	public void createDataBase() throws IOException {

		boolean dbExist = checkDataBase();

		if (dbExist) {
			// rien a faire la base existe deja
		} else {

			this.getReadableDatabase();

			try {
				copyDataBase();
			} catch (IOException e) {
				throw new Error("Error copying database");
			}
		}

	}

	private boolean checkDataBase() {

		SQLiteDatabase checkDB = null;

		try {
			String myPath = DB_PATH + DB_NAME;
			checkDB = SQLiteDatabase.openDatabase(myPath, null,
					SQLiteDatabase.OPEN_READONLY);
		} catch (SQLiteException e) {
			// la base existe deja
		}
		if (checkDB != null) {
			checkDB.close();
		}
		return checkDB != null ? true : false;
	}

	private void copyDataBase() throws IOException {
		
		try{
			
		InputStream myInput = myContext.getAssets().open("FLST_DB.sqlite");

		String outFileName = DB_PATH + DB_NAME;

		OutputStream myOutput = new FileOutputStream(outFileName);
		byte[] buffer = new byte[1024];
		int length;
		while ((length = myInput.read(buffer)) > 0) {
			myOutput.write(buffer, 0, length);
		}

		myOutput.flush();
		myOutput.close();
		myInput.close();
		
		}
		catch(Exception ee){
			System.out.println("erreur copie");
			ee.printStackTrace();
		}
	}

	public void openDataBase() throws SQLException {

		// Ouverture database
		String myPath = DB_PATH + DB_NAME;
		maDatabase = SQLiteDatabase.openDatabase(myPath, null,
				SQLiteDatabase.OPEN_READWRITE);

	}

	@Override
	public synchronized void close() {

		if (maDatabase != null)
			maDatabase.close();
		super.close();
	}

	@Override
	public void onCreate(SQLiteDatabase db) {
		// TODO Auto-generated method stub
	}

	@Override
	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
		// TODO Auto-generated method stub
	}
	

}
